Questions about starting?

I think it would be fun to start I'm open to trying it,with my boyfriend only. He is very sensitive I mean his skin so something that doesn't hurt alot to me could hurt alot to him. Should I train him to do things to me then? I think I would like to either be dominant or submissive both sound fun. Anyone have any great porn dvds to reccomend so I can see more ideas or what to do or how to act? I think some days I just want to feel more,like more alive? sometimes I'm thinking somoene spaking me or whipping me or me doing it to someone else sounds appealing.